Korn's Groovy Pirate Ghost Mystery - S3-E10
Corrected entry: When the boys dig up Kyle's dead grandmother, the last name on the tombstone is "Broflovski." But when the cemetery people go to Kyle's house to tell his parents what happened, they tell his mother "your mother" has been dug up. Unless her maiden name is also "Broflovski," which is unlikely, the dead woman would have to be Kyle's father's mother.
Mr. Hankey's Christmas Classics - S3-E15
Corrected entry: During the dreidel song Kyle's mother comes in, but you can barely hear her voice. This is because the woman that played all of the female voices committed suicide in the middle of the 3rd season, so they had to find another person and they turned down the sound of her voice so no one would hear any differences between the real voice and the voice they used in this episode.
Correction: Not quite. It is true that Mary Kay Bergman killed herself in the middle of season three, but it actually is her voice in this episode. The songs from this episode were from an album the creators put out of the same title (Mr. Hankey's Christmas Classics.) The album was recorded and released long before this episode aired. They simply animated an episode to the album because they were stuck with no female voices after the only one was dead and had no other ideas or time to think of any. The reason Kyle's mother sounds like that is due to the mono sound systems on most TVs. Since albums are meant to be heard on CD players, stereo versions of the songs are usually created. If a stereo song is played on a mono device (such as a TV,) some sounds may be muffled or completely blocked out (if you don't believe me, play Sgt. Pepper's Lonely Heart's Club Band on a DVD player with no surround sound system or stereo.) Matt and Trey probably had no time to worry about stereo/mono conversions and simply aired it as it was. When I watched my season 3 DVD on my portable DVD player (which has stereo,) her voice was at normal volume.
Starvin' Marvin in Space! - S3-E13
Corrected entry: The cheesy song button is the same button that activates the wormhole.
Correction: So? To quote Prof. Farnsworth in Futurama, "it can do other things." I have only two buttons on my mouse on my laptop, but clicking the mouse does different things in different situations.
Korn's Groovy Pirate Ghost Mystery - S3-E10
Corrected entry: Why doesn't Kyle's Grandma's grave have a Star of David on it? The Brofloskis are Jewish.
Correction: Kyle's grandmother would not be a Broslofski by birth - her family may not have been Jewish.
Correction: While rare, it's not completely uncommon for a man to adopt the wife's maiden name after marriage. Given Sheila's commanding personality compared to Gerald, it's possible she got him to change his name to Broflovski when they were married.